Check with your doctor on this. I just had surgery for torn ligaments and before surgery my doctor didn’t want me on any peptides and depending on the peptide a few weeks out from using before the surgery. A few weeks after the surgery he finally gave me clearance to try BPC 157/TB 500 as long as it was from a reputable source. I’m on fourth week of using but my recovery is still taking time with the help of physical therapy. But, I did break my toe first week after surgery and the pain was worse than my surgical area. That pain is completely gone now which I think had to do with the peptide.